Electronic Circuits

In this section you will learn and build simple electronic circuits projects. You will make interesting analog electronic circuits useful in daily life. Moreover, you will know electronic circuit design using circuit elements.

The circuits include home made electronic circuits, hobbyist circuits and prototypes.

Articles Written 240

An Isolated Power MOSFET Switch

I volunteered to design a simple and inexpensive isolated power mosfet switch to control some electric loads by a ‘pulsed’ low-voltage input signal. There are of course superb solid state relays (SSRs) that we could […]

Rotary Encoder Primer

There seems to be a lot of confusion among electronics hobbyists about how a rotary encoder (knob) works and how to use it with electronics projects. Today, we’ll be examining a very cheap and easily […]

Compact Anti-Snatch Alarm

In this article you can see an ultra simple circuit of a lightweight, truly portable, and compact anti-snatch alarm. This trembler alarm is battery operated and features a tone generator capable of drawing quick attention […]

USB 12V Cable Review

One issue that has caught quite a few electronics hobbyists out when they build simple projects on a breadboard is the selection of a right power supply source. The most popular MB-102 breadboard comes with […]

Expansible Door Sensor

Monitoring entry/exit doors on time is not always an easy task for everyone. Fortunately, with a handful of electronic parts you can build yourself an expansible door sensor that will not only give a timely […]

LED Strobe Light DIY

Nothing mattering to see a circuit turning light emitting diodes (LEDs) on and off. If for certain applications, brightness of the LEDs could be adjusted in a continuous manner, with a simple dimmer circuit you […]

Solid State Relay (SSR) Primer

Nowadays solid state relays (SSRs) can be found in almost every online electronics store, and SSRs are certainly the most ‘silent’ relays available. However, I would like to point out at first that SSRs are […]